Vista - Spooler Subsystem problems reinstalling Lexmark

Please help! I have spent so much time on this already. I had Lexmark
all-in-one X5260 and an old Epson printer installed on my Vista Business Sony
Vaio laptop without problem since early 2008. Yesterday I removed the old
Epson, with problems, as it had a test print still in the spooler. Since
then I have had “Spooler SubSystem App� problems and been unable to
re-install or print from the Lexmark. I did System Restore back to the day
before I removed the Epson printer. I carefully removed the Epson printer.
Still no printing with Lexmark. I have followed the recommendations of many
of the posts here, especially “Spooler SubSystem App� with Alan Morris and
Eddie. I uninstalled Lexmark. I followed the procedure recommended in
http://members.shaw.ca/bsanders/CleanPrinterDrivers.htm
and presumed I deleted the drivers and spoolers. However I was unable to do
the “net stop spooler� and “net stop spooler�. I got the response “System
error 5 has occurred. Access is denied�. In Command Prompt I was not at the
root directory, I was at C:\Users\Vaio. (Vaio is my user name.) I am the
only user of this laptop and my printer is plugged into a USB port, not
networked.
I then tried to install from the Lexmark 5200 Series CD. Before getting to
the “detecting your printer� phase, I got the Spooler SubSystem App closed
error message. Lexmark 5200 now appears in my printers but a test page print
or doc print does not work.